#include <ros/ros.h>
#include <std_msgs/String.h>

int main(int argc, char* argv[])
{
    ros::init(argc, argv, "publisher1_node");
    ros::NodeHandle nh;
    ros::Publisher pub = nh.advertise<std_msgs::String>("publish_message_1", 10);
    ros::Rate loop_rate(10);
    while (ros::ok())
    {
        printf("start \n");
        std_msgs::String msg;
        msg.data = "hello world 1";
        pub.publish(msg);
        loop_rate.sleep();
    }   
      
    return 0;
}